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Do You Need an Accountant If You Use Xero? The Honest Scope Split

Reviewed by Patrick Sargent CA, Registered Tax Agent 25758613Published 2 August 2026 · Last reviewed 2 August 20265 min read

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Who does what

The three layers, what each covers, and realistic cost
LayerWhat it actually coversRealistic cost
SoftwareBank feeds, invoicing, BAS assembly, payroll mechanics and Single Touch Payroll$0 to $100+ per month depending on tier
You, or a bookkeeperThe weekly rhythm: reconciling, coding, receipts, chasing invoices. Bookkeepers earn their keep on volume - payroll, inventory, high transaction countsDIY: around 30 minutes a week. Bookkeeper: commonly $50-$90 an hour, a few hours a month for a typical micro business
Registered BAS or tax agentReviewing the judgment calls (GST classification, entertainment, private use); lodging returns and BAS on the agent program; structure, Division 7A and concessions; remission requests, payment plans and catch-ups - representation is agent-only territorySole trader return plus schedule: commonly a few hundred dollars. Company with BAS review: low thousands a year. Multi-year catch-ups are quoted per job, and the fee is deductible
The three layers, what each covers, and realistic cost

The two ways businesses get this wrong

Over-DIY. "Xero does it all" holds right up until the classification errors compound: GST charged on GST-free items, assets expensed, the directors' loan nobody watched, a PSI question never asked. The software faithfully automated every mistake, and the eventual amendments or review cost multiples of the quarterly check that would have caught them. The tell: nobody has ever looked at your file, and you are not sure which cash or accruals setting you are on.

Over-outsource. Paying an accountant's rates for bookkeeping-layer work - data entry, chasing receipts - is the opposite waste. The efficient stack for most small businesses is software, plus your weekly 30 minutes or a bookkeeper at volume, plus an agent quarterly for the judgment layer and annually for the lodgments.

And the case where the question answers itself: if you are behind, with unlodged returns, BAS quarters and an unreconciled year, this stopped being a software-versus-accountant question. Catch-up work is agent territory by function - reconstruction, remission, and the lodgment shield against director penalties - and it is the one job where the fee most reliably pays for itself in penalties and interest not paid.

Frequently asked questions

Do I need an accountant if I use Xero?
Not for recording - that is what the software does. For judgment calls, lodgment on agent deadlines, structure, and anything involving negotiating with the ATO: yes, that layer never lived in the software.
What is the difference between a bookkeeper and an accountant?
Bookkeepers maintain the records - reconciling, coding, payroll processing. Accountants and tax agents interpret them, lodge, advise on structure, and represent you to the ATO.
How much does an accountant cost for a small business?
Typically a few hundred dollars for a sole trader return, up to low thousands annually for a company with quarterly review. It is deductible, and cheap against one prevented error.
Can I lodge my own BAS and returns from Xero?
Yes. Self-lodgers get the standard deadlines and carry the classification risk themselves. Agents add extended due dates and the review layer.
What can only a registered tax agent do?
Lodge under the agent program's extended deadlines, and represent you: remission requests, payment plan negotiation, objections, and multi-year catch-ups.

General information only - not personal tax, financial or legal advice. Consider your own circumstances or speak to a registered tax agent. Remission of penalties or interest and payment plans are decisions of the ATO and outcomes can't be guaranteed.

Years behind? It ends this week.

If the honest answer for you is "I am behind, not just undecided", start there. Send us your situation - a registered tax agent will come back with a fixed quote and a plain-English plan. No call needed.

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